\documentclass[letterpaper,10pt]{article}
\usepackage{graphicx}
\begin{document}

\begin{figure}
    \centering
    \includegraphics[scale=1]{ol_priklady.1.mps}
    \caption{olpriklady.1.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{ol_priklady.2.mps}
    \caption{olpriklady.2.mps}
\end{figure}

\begin{figure}
    \centering
    \includegraphics[scale=1]{ol_priklady.3.mps}
    \caption{olpriklady.3.mps}
\end{figure}

\end{document}
